Mets manager Terry Collins said Saturday that while he would like Bobby Parnell to prepare to close games, if Jenrry Mejia is dominating in that role, no change will be made.

Advice: The 25-year-old flourished after shifting to the bullpen in 2014, posting a 2.72 ERA, 1.42 WHIP and 60/21 K/BB ratio over 56 1/3 innings while converting 28 of his 31 save chances. If he produces similar results, expect Parnell to function in a setup role at least initially upon his return.